Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Total revenue	$ 1,194,763	$ 1,144,585
Costs, expenses and (gains):
General and administrative expense	573,532	495,040
Depreciation expense	2,027	1,191
Gain on sale of land and equipment	(881,654)	(34,711)
Total costs, expenses and (gains)	(173,588)	603,456
Income from operations	1,368,351	541,129
Interest income	97,502	44,958
Income before income taxes	1,465,853	586,087
Federal and state income tax expense:
Current	350,793	174,479
Deferred		(111,255)
Total income taxes	350,793	63,224
Net income	$ 1,115,060	$ 522,863
Per common stock, basic and diluted
Net income (in dollars per share)	$ 0.57	$ 0.27
Dividends (in dollars per share)	$ 0.12	$ 0.10
Weighted average shares outstanding, basic and diluted (in shares)	1,942,495	1,942,495
Oil and Gas [Member]
Revenues:
Revenues from customers	$ 581,463	$ 609,122
Costs, expenses and (gains):
Cost of goods and services sold	63,231	62,315
Timber [Member]
Revenues:
Revenues from customers	454,177	224,111
Costs, expenses and (gains):
Cost of goods and services sold	45,640	35,692
Surface Leases, Unrelated Parties [Member]
Revenues:
Revenues, leases	120,790	273,019
Surface Leases, Related Parties [Member]
Revenues:
Revenues, leases	38,333	38,333
Surface Leases [Member]
Costs, expenses and (gains):
Cost of goods and services sold	$ 23,636	$ 43,929